WMSIC Electronic Components

Sumida CDRH4D28NP-4R7NC CDRH4D28NP

ModelCDRH4D28NP-4R7NC
PackageSMD,4.7x4.7mm
BrandSUMIDA
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Sumida CDRH4D28NP-4R7NC
Type
SUMIDA
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUMIDA
Electronic Component
CDRH4D28NP-4R7NC
Electronic Component
1
Package
SMD,4.7x4.7mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±30%
Electronic Component
0.363g
Inductor
4.7uH
Electronic Component
1
Electronic Component
BM0265592443
Current
1.32A
Resistor(DCR)
72mΩ
Electronic Component
Electronic Component
Electronic Component
2000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

Sumida CDRH4D28NP-4R7NC 功率电感产品概述

一、产品定位与核心特性

这款电感由日本胜美达(Sumida)推出,属于磁胶屏蔽贴片功率电感,核心定位是满足高密度、小型化电子设备的电源转换需求。不同于普通信号电感,它更侧重「大电流承载能力+低损耗+低EMI干扰」,特别适合对体积敏感且需要稳定供电的场景(如可穿戴设备、IoT传感器等)。其设计围绕「小封装内集成高电流密度」展开,通过优化磁芯材料和绕组结构,平衡了电感值、电流承载与热损耗。

二、关键电气参数的实际价值

  1. 电感值与精度:标称4.7μH,精度±30%——功率电感对精度要求低于信号电感,30%的公差完全能满足DC-DC转换的滤波需求,同时降低了生产难度与成本,适合批量应用。
  2. 额定电流1.32A:这里指温升电流(环境温度25℃时,电感表面温升≤40K的最大电流),意味着在正常工作状态下,它能稳定输出1.32A电流,不会因过热导致电感值漂移或性能下降。
  3. 直流电阻(DCR)72mΩ:低DCR是核心优势——通电时自身功率损耗P=I²R,1.32A下损耗仅约0.125W,发热少、效率高,能延长电源模块的使用寿命。
  4. 磁胶屏蔽特性:磁胶包裹磁芯,大幅降低漏磁(对比非屏蔽电感漏磁减少60%以上),减少对周边敏感电路(如射频模块)的干扰,符合EMC电磁兼容要求。

三、封装与结构优势

  1. 超小贴片封装:采用SMD 4.7×4.7mm封装(厚度约2.8mm,对应型号中「28」),属于超小型功率电感,能节省PCB板空间,适配手机、智能手表等紧凑设计。
  2. 抗干扰+抗振动:磁胶不仅抑制漏磁,还能增强电感的抗振动性能(胜美达测试显示,振动频率20-2000Hz下,电感性能无明显变化),适合车载、工业等振动环境。
  3. 自动化生产适配:SMD封装兼容标准贴片机,支持回流焊工艺,生产效率高,适合大规模量产。

四、典型应用场景

这款电感的参数与结构,决定了它在以下场景中表现突出:

  1. 消费电子:智能手机、平板电脑、智能手表的CPU供电模块(5V→3.3V/1.8V DC-DC转换),蓝牙/WiFi模块的电源滤波。
  2. IoT设备:智能家居传感器(如温湿度传感器、智能门锁)、可穿戴健康设备的低功耗电源管理。
  3. 工业控制:小型PLC、电机驱动的辅助电源,工业传感器的供电电路。
  4. 车载电子:车载USB充电模块、仪表盘背光电源(胜美达此类产品通常支持-40℃~125℃宽温,适配车载环境)。

五、质量与可靠性保障

胜美达作为全球知名电感制造商,对产品质量把控严格:

  1. 环保合规:符合RoHS 2.0、REACH等国际环保标准,无铅无镉,适合出口产品。
  2. 一致性优异:批量生产时电感值、DCR偏差小,避免因参数波动导致电源模块性能不稳定。
  3. 宽温耐候性:工作温度范围-40℃~125℃,能适应极端环境(如高温车间、低温户外)。
  4. 长寿命设计:磁芯与绕组材料稳定性高,经1000小时高温老化测试后,性能衰减率≤5%。

总结:CDRH4D28NP-4R7NC是一款「小体积、高电流、低损耗、低EMI」的磁胶屏蔽功率电感,完美适配高密度电源设计,是消费电子、IoT、工业等领域的高性价比选择。

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